Adjustable platform



(No Model.)

B. H. FISHER. ADJUSTABLE PLATFORM.

Patented May 18, 1897.

Attorney.

UNITED STATES PATENT EEIcE.

ELIJAI-I I-I. FISHER, OF GRAND RAPIDS, MICHIGAN.

ADJUSTABLE PLATFORM.

SPECIFICATION forming part of Letters Patent No. 582,815, dated May 18,1897.

Application filed February 12, 1896. Serial No. 579,058. (No model.)

T0 at whom it may concern.-

Be it known that I, ELIJAH H. FISHER, a citizen of the United States,residing at the city of Grand Rapids, in the county of Kent and State ofMichigan, have invented a certain new and useful Adjustable Platform, ofwhich the following is a specification.

This invention relates to a new and useful adjustable platform for usein washing windows, setting glass into sash after the sash has beenplaced in the windows, and other analogous purposes; and the inventionconsists in the particular construction of a window bracket orplatform-having a step-ladder attached thereto, so that when saidladderis not used to reach the upper portion of the window it will serve as anend guard, it being maintained in a vertical position at the outer endof the platform, as will be hereinafter fully set forth, andspecifically pointed out in the claims; and the objects of the inventionare, first, to furnish an adjustable support or platform which can beplaced quickly and readily within a window and attachedthereto, therebyfurnishing a support for persons upon the outside of the window orbuilding; second, to produce a support which may be constructed cheaplyand can be quickly attached to and detached from the window, and, third,to furnish, in con nection with the support described, a hinged guardprovided with steps which may be used when it is found desirable toreach the upper portion of the window on the outside. These objects Iaccomplish by means of the mechanism illustrated in the accompanyingdrawings, in which-- Figure 1 shows a plan view of a support constructedin accordance with my invention placed in position with a section of thesill and window to which the same is applied. Fig. 2 shows an invertedplan View of the support, illustrating the means for adjusting thesupport to the window, said Fig. 2 showing the adjustable slots set atan angle. Fig. 3 shows a side elevation of my adjustable platform with asection of the window-sill and a side elevation of the window-case,together with the adjustable guard and steps, the same being shown inposition for use when the operator desires to reach a higher I part ofthe window. The dotted lines (marked H) show the position of the guardwhen in use in connection with the steps. Fig. 4 shows the rear end ofthe platform or a view from the outside of the building, the same inposition within the window.

Similar letters refer to similar parts throughout the several views.

In the drawings, A A represent the window-casing.

A A represent a section of the wall of the building.

B represents the window-sill.

0 represents the main platform or support upon which the operatorstands.

0 represents a guard or raised portion on the outer end and sides of theplatform, which in the example of my invention shown in the drawings isattached rigidly thereto. It will be understood, however, that thisguard may be constructed in any suitable manner and of any suitableheight, and the side pieces extend from the outer end of the platforminwardly and form braces for said platform in addition to providingmeans for attaching the legs or supports of the ladder thereto.

E E represent the adjusting-bolts, which pass through the slots (2 6,each bolt being provided with a nut or other suitable means for securingthe same in the slots. These bolts pass through the adjustable bar D. Byloosening the nuts upon the bolts the bar D may be moved laterally, soas to adapt the platform to windows having the window-sills of greateror less width or to buildings having walls of different thicknesses, thelength of the slot 6 being sufficient to allow for a range of adjustmentwhich will adapt the platform to all ordinary buildings.

F is a cross-piece or bottom strip which is securely attached to theunder side of the platform and is adapted to rest upon the outer part ofthe window-sill B. Preferably the strip F should be of su'fficientthickness to support the platform in a substantially horizontalposition. In the example of my invention shown in the drawings I haveshown a strip a at the inner side or end of the platform, and also anunder strip 0 These strips are applied merely for the purpose ofstrengthening the main support or platform and may be dispensed with, ifdesirable.

G represents the window.

Vhen I use in connection with my ad 3' ustable platform the stepsorstep-ladder, which is adapted also to form a guard, this adjustable'guard is hinged to the outer end of the platform 0, as shown inFig. 3, by 71. H represents the steps, which are hinged to the uprightor rear piece by means of the pivot it. The step-ladder guard iscomposed of the steps H and the support or back H, the said back orbrace being pivoted at the top to the steps H by 7b and pivoted at thebase by 7b. hen the step-ladder is used merely as a guard, it is foldedinto perpendicular position, as shown in Fig. 3 at H, and when not inuse the steps H are folded back against H and the whole folded down inclose contact {VlhlIl the support 0, the position being shown Theabove-describcd step-ladder arrange ment is especially useful inconnection with long or high windows.

In using my invention the platform is placed in position within thewindow-opening, the support or strip F resting upon the sill 011 theouter side of the building, the central portion of the platform restingupon the lower case of the window, and the adj ustablc strip D adjustedso as to fit closely against the inside of the window-casing, as shownfully in Fig. 3. hen the strip D has been adjusted to proper position,the nuts E on the bolt are tightened so as to securely retain it inplace. A portion of the support 0 then projects outwardly beyond thewindow-sill, as shown in said Fig. 3, and furnishes a safe andconvenient platform for the operator to stand upon in washing windows orfor other analogous purposes.

Having thus described my invention, what I claim to have invented, anddesire to secure by Letters Patent, is

In a window bracket or platform, the combination with the main platformhaving means for securing the same to a windowcasing, the portion of theplatform which extends beyond the outer side of the windoweasing havingsecured thereto an upwardlyprojecting end strip and inwardly-projectingside strips; together with a step-ladder, the outer legs of which arepivotally attached adjacent to the outer ends of the side strips thestep-section of the ladder being pivoted to and folding within theaforesaid legs, the ladder being maintained in avertical position byengagement with the end strip, substantially as shown.

2. In combination with a window-cleaning platform, of a main platformhaving rigidly secured thereto, across-piece, said cross-piece extendingbeyond the sides of the platform and provided with recessed ends, sidestrips secured to the upper edges of the platform and a cross-stripattached to the outer end thereof, the innerportion of theplatformhaving slots, a cross-bar of greater length than the width ofthe platform and means for securing said cross-bar to the platform;together with a ladder having legs or members pivotally connected toeach other, one of the pair of legs being pivotally secured to theupwardlyprojecting side pieces of the platform at a point adjacent tothe transverse strip, the parts being organized substantially as shown.

In witness whereof I have hereunto set my hand and seal in the presenceof two wit nesses.

ELIJAII II. FISHER.

